多中心前性对患者辐射剂量的比较研究,用于小肺病变的定位技术
Tomoki Nishida1,2, Yuichi Saito1, Takeshi Takata3
1Department of Surgery, Teikyo University School of Medicine, Tokyo 173-0003, Japan.
Cancers
|October 16, 2025
概括
肺部病变的术内圆束计算断层扫描 (CBCT) 是安全的和可行的. 多达三次的CBCT扫描比线或虚拟辅助肺部绘图方法提供更低的辐射暴露.
科学领域:
- 胸部外科手术 胸部外科手术
- 医疗成像医学成像
- 辐射瘤学 辐射瘤学
背景情况:
- 圆束计算断层扫描 (CBCT) 用于小肺病变手术,但其辐射剂量影响尚不清楚.
- 在胸部手术过程中,患者从CBCT中受到的辐射暴露需要与替代标记技术进行比较.
研究的目的:
- 在胸部手术期间调查与手术内CBCT相关的患者辐射剂量.
- 为了比较CBCT辐射剂量与线和虚拟辅助肺绘图 (VAL-MAP) 手术前标记方法的辐射剂量.
主要方法:
- 一项多中心前性研究,涉及81名接受小肺病变手术的患者.
- 用可穿戴剂量计测量的辐射剂量,遍及五个前胸部部位.
- 来自CBCT (1-4扫描),线和VAL-MAP的剂量比较.
主要成果:
- 在CBCT组 (n=61),VAL-MAP (n=10),线 (n=10) 中.
- 辐射剂量:线 (86.9 mGy),VAL-MAP (39.8 mGy),单次CBCT (11.0 mGy),双次CBCT (17.3 mGy),三次CBCT (23.1 mGy),四次CBCT (22.7 mGy).
- 随着CBCT扫描频率的增加,辐射暴露增加,但高达三次扫描显示暴露程度明显低于其他方法.
结论:
- 术内CBCT是一种安全和可行的技术,用于定位小肺病变.
- 与线和VAL-MAP相比,CBCT提供了较低的辐射暴露,即使是多次扫描.
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